Lamp burner



Jan 6. 1925 1,522,323

Z. OLSSO N LAMP BURNER I Filed Deb. 4, 1925 11v VENT-OR A TTORNE Y Patented Jan. 6, 1925.

UNITED srres 1,522,323 PAT NT OFFICE;

ZACI-IABIAS oLssoN, on NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, To i BURGOYNE LIGHT & SIGNAL CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

LAMP BURNER.

Application filed December 4, 1923. Serial N0. 678,467.

To all whom it may concern:

Be it known that I, ZACHARIAS OLssoN, citizen of Sweden, and resident of the city of New York, in the county of Richmond and State of New York, have invented certain new and useful Improvements in Lamp Burners, of which the following is a specification.

The present invention relates to lamp burners, and more particularly to that class of burners which are used in connection with signal lamps, that are intended to burn as long as possible without trimming.

In burners of the class referred to it is necessary to use a round wick in order to obtain the feature of long burning without trimming. It is, however, desirable to have the flame. of such lamps flat such as is produced by a flat wick.

The main objects of the present invention are to provide the burner attachment, commonly called a flame spreader, which is simple and inexpensive in construction, eflicient in its operation, and which effects a perfect combustion of the corbona-ceous vapor rising from the burning wick, to create a larger and whiter flame than has been possible with the Spreaders heretofore in use for such purpose, and to reduce the carbon deposits on the wick to a possible minimum.

Another object of the invention is to provide a burner of the type mentioned which permits of the use of a comparatively inexpensive oil with the round wick long time burners now used in signal lamps without causing the flame to flicker.

A further object of the invention is to provide a flame spreader which so regulates the air supply to the flame that the interior of the spreader confines the blue non-light giving portion of the flame whereby the fuel is eflectively vaporized, and the luminous zone of the flame is disposed wholly above the spreader, the latter thereby not interfering with the light rays emitted by the flame.

With these and other objects in View, which will more fully appear as the nature of the invention is better understood, the same consists in the combination, arrangement and construction of parts hereinafter described, pointed out in the appended claims and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and details of construction within the scope of the appended claims, without departing from the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accominvention in position thereon; Fig. 2 is'a front elevation of the combined flame spreader and vaporizer; Fig. 3 is a rear elevation of the saidelement; and Fig. 4: is'a top plan view of the spreader and vaporizer shown in Figs. 2 and 3 of the drawings.

In the drawings, the numeral 10 indicates 1 a lamp font of any ordinary form, provided with a burner 11 fitted to the said font.

The burner includesa wick tube 12, through which passes the usual round wick 13. A wick raising shaft 14 extends through the burner, it being provided at its inner end with a star wheel 15, extending into the wick tube. The wick tube extends through a screw-threaded bore 16 in the burner, and with the threads of this bore are engaged those of a nipple 17, from which rise two supporting arms 18, the latter carrying a flame spreader and vaporizer 19. The flame spreader and vaporizer is disposed a little distance above the wick tube 12, as clearly appears from Fig. 1 of the drawings. It is formed of sheet metal and comprises two opposite side members 20, inclined from the base upwardly and outwardly, and united at their opposite ends by end members 21 which are inclined from the base upwardly and inwardly, the construction being such that an elongated opening 22 is formed through I the top and an elongated opening 23 through gig:

rounds the wick tube 12 (Fig. 1), the wick projecting a little distance into the ele-. ment 19. The center of the wick tube is in alignment with the. intersection of the axes of the inlet and outlet openings of the frame 19.

In use, air enters the element 19 through the inlet 23 thereto, passing upwardly and leaving the same through the outlet 22, drawing the flame outwardly in opposite directions from the wick to spread it until it touches the top edges of the side members 20, thus producing a flat flame from a round wick. To support combustion below the top edge of the flame spreader and vaporizer, sufficient air is drawn into the flame through the inlet opening 23 to feed the flame and produce a blue non-light giving flame within the element 19. This amount of air is, however, insuflicient to produce combustion close down to the wick tube, thereby leaving an unburned or uncrusted portion of the wick, through which the vapor of the oil can escape to supply the flame at all times. Inasmuch as the outlet opening 22 of the element 19 is larger than the inlet opening 23, the air current is caused to slow down as it flows through the said element, the exterior air impinging against the flame sides above the element 19 to effect a combustion of all carbon matter rising with the flame. It is found with this arrangement that'a very broad and wide flame is obtained, that has the maximum amount of lighting efficiency for the size of wick and kind of oil used.

Inasmuch as the element 19 is heated by the non-luminous portion of the frame 19. the latter acts as a. vaporizer for the liquid fuel, the products of combustion and the air mingling therewith being kept at a heat to render said products of combustion more inflammable, with the result that they are being consumed without the production of smoke.

By providing a small round wick, com-- bustion obviously takes place very slowly, so that the lamp will burn for a long time without attention, this feature being particularly desirable in lamps for use on signal lamps, such as on railways on which lamps are located at distant points hard to reach every day.

-What I claim is:

1. The combination with a lamp burner including a wick tube, of a frame disposed above said wick tube comprising a pair of oppositely arranged upwardly and outwardly inclined side members connected by a pair of upwardly and inwardly inclined end members, said frame being thus provided with an oblong inlet opening at its bottom and an oblong outlet opening at its top, the longitudinal axes of said openings extend ing at right angles to one another and the size of said inlet opening being smaller than that of said outlet opening, the center of said wick tube being in alignment with the intersection of said axes.

2. In a lamp burner according to claim 1, said frame being made of sheet metal.

Signed at New York, in the county of New York and State of New York, this 8th day of September, A. D 1922.

ZACHAR-IAS OLSSON. 

